public function getFunctions()
{
$options = array('needs_environment' => true, 'needs_context' => true, 'is_safe' => array('all'));
$functions = array();
foreach (array('get_header', 'get_footer', 'get_sidebar', 'get_template_part', 'get_search_form', 'comments_template') as $function) {
$functions[] = new \Twig_SimpleFunction($function, array($this, $function), $options);
}
return $functions;
}